Naveen travels 6 km to the North. From there 4 km to the East. From then 3 km to the South. How far is he now from his starting point?

Given:

• Naveen travels 6 km to the North. From there 4 km to the East

• From then 3 km to the South

Now, let's find distance between Naveen's starting point and end point.

Apply Pythagoras theorem,

Distance between Naveen start point and O = 4 km

And, distance between end point and O = 3 km

⇒ (4)² + (3)² = (Distance between start and end point)²

⇒ 16 + 9 = 25 

⇒ √25 = 5 km = distance between start and end point

Hence, the correct answer is "5 km".